The year 2025 has begun. Within just a few weeks, I left my professorship, relocated to Maryland, became a resident of the state, and embarked on a new chapter of life.
Author Archives: saemiller
Academic Odyssey to Ithaca
Today marks the conclusion of my professorship at the University of Florida. Odysseus’s journey from the Ilion Wars (Trojan Wars) back to Ithaca was an odyssey that defined much of his lifetime. Though separated from his love, it was the journey that made his love meaningful. Approximately eight and a half years ago, I began …
Book Collecting
I have known men to hazard their fortunes, go long journeys halfway about the world, forget friendship, even lie, cheat, and steal, all for the gain of a book. – A.S.W. Rosenbach, Books, and Bidders
The Three Pillars of Rocketry Culminating in Human Spaceflight
Below is an article that is upcoming in the NASA Alumni newsletter without images. “The Earth is the cradle of humanity, but one cannot live in the cradle forever.” – Konstantin Tsiolkovsky Modern rocketry began with foundational work by pioneers such as Tsiolkovsky, Oberth, Goddard, and the American Rocket Society. Their theoretical and experimental advances …
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Research Notes on The American Rocket Society
“The dream of yesterday is the hope of today and the reality of tomorrow.” – Robert H. Goddard While Dr. Robert H. Goddard was advancing rocketry through private experiments, another group of American enthusiasts independently pursued space exploration. Formed in the early 1930s, the American Rocket Society (ARS) emerged as an organization that not only …
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Research Notes on Hermann Oberth
“To boldly go where no man has gone before.” – Hermann Oberth Hermann Oberth’s theoretical breakthroughs transformed rocketry from speculative fiction into science, thus influencing the development of modern space exploration. His mentorship of Wernher von Braun and contributions to the V-2 rocket program set foundational principles that shape the field. Germany’s major figure in …
A Possible High-Re Liquid He Experiment
I wrote about this experiment and discussed it with funding agencies long ago and just wanted to post the idea. I am exploring the possibility of conducting high-Reynolds number turbulence experiments. One experiment would involve constructing a large isolated vessel filled with liquid helium to create fully developed, spatially localized high-Re flow through transient forcing …
Research Notes on Konstantin Tsiolkovsky
“The Earth is the cradle of humanity, but one cannot live in the cradle forever.” – Konstantin Tsiolkovsky In 1903, Tsiolkovsky wrote an article called, “Exploration of outer space by means of rocket devices,” in The Science Review. Born in September 1857 in the village of Izhevskoye, Russia, Tsiolkovsky was the fifth child in a …
Early Rockets and Review Notes
One of the earliest documented uses of rockets was in China. Father Antoine Gaubil, a French Jesuit missionary and historian, described an event in his 1739 writings, “When it was lit, it made a noise that resembled thunder and extended 24 km. The place where it fell was burned, and the fire extended more than …
Hypersonics History of Reentry
Lately, I have been examining the entire history of hypersonics research and technology, with a particular focus on the re-entry problem and ablation for small vehicles, such as those from ballistic missiles. While reviewing the writings of Wernher von Braun, I was amused to find that he joked about using frozen balsa wood as a …